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8684489 = 11839941
BaseRepresentation
bin100001001000…
…001111001001
3121100012212202
4201020033021
54210400424
6510045545
7133550132
oct41101711
917305782
108684489
1149a1870
122aa98b5
131a50b68
141220c89
15b682ae
hex8483c9

8684489 has 8 divisors (see below), whose sum is σ = 9495360. Its totient is φ = 7877200.

The previous prime is 8684483. The next prime is 8684503. The reversal of 8684489 is 9844868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8684489 is a prime.

It is a super-2 number, since 2×86844892 = 150840698382242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8684483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8759 + ... + 9699.

It is an arithmetic number, because the mean of its divisors is an integer number (1186920).

Almost surely, 28684489 is an apocalyptic number.

It is an amenable number.

8684489 is a deficient number, since it is larger than the sum of its proper divisors (810871).

8684489 is a wasteful number, since it uses less digits than its factorization.

8684489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791.

The product of its digits is 442368, while the sum is 47.

The square root of 8684489 is about 2946.9457069990. The cubic root of 8684489 is about 205.5487104395.

The spelling of 8684489 in words is "eight million, six hundred eighty-four thousand, four hundred eighty-nine".

Divisors: 1 11 839 941 9229 10351 789499 8684489